Ok, I've been having this question that's been in my head for quite some time now, so I need answers please. (If possible)

 

So, I know how Kairi got her Keyblade (Keyblade Inheritance Ceremony from Aqua by accident). But what I don't understand is how Riku got her Keyblade and gave it to her at KH 2.

 

 

Uh....Nomura logic?

Aqua had that keyblade in KH BBS, Riku must have found it and gave it to Kairi.

Keyblades change their shape and traits based on their charm/aka token (though there are some that don't need charms).  Aqua got Destiny's Embrace after receiving flowers from Kairi in BBS, so she had the charm, I would assume when she sacrificed her armor and fell into the RoD, she lost the charm.  And with Riku using the corridors of darkness, he probably came across it.  I would assume he summoned a keyblade, and it took Destiny's Embrace's form with the use of the token and handed it over to Kairi in KH2, and then summoned his own personal one.  

Keyblades change their shape and traits based on their charm/aka token (though there are some that don't need charms).  Aqua got Destiny's Embrace after receiving flowers from Kairi in BBS, so she had the charm, I would assume when she sacrificed her armor and fell into the RoD, she lost the charm.  And with Riku using the corridors of darkness, he probably came across it.  I would assume he summoned a keyblade, and it took Destiny's Embrace's form with the use of the token and handed it over to Kairi in KH2, and then summoned his own personal one.  

Yea i was thinking the same thing. Maybe while riku was having his fun in the corridors of darkness he found it, or better yet Aqua gave it to him and he just forgot about her when he left.